The Insulator,bowl, cataloged under National Stock Number 5970-00-405-8221, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-405-8221 |
| Item Name | Insulator,bowl |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Status | ACTIVE |
| Center Hole Width | 0.250 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Mounting Facility Type and Quantity | 1 UNTHREADED HOLE(S) |
| Center Hole Length | 0.250 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Height Above Mounting Surface | 0.312 INCHES NOMINAL IN |
| Shoulder Flat Angle in Deg | 86.0 |
| First Counterbore Diameter | 0.380 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN |
| Shoulder Notch Width | 0.100 INCHES NOMINAL IN |
| Style Designator | TAPERED, COUNTERSINK |
| Outside Diameter | 0.688 INCHES MINIMUM AND 0.692 INCHES MAXIMUM IN |
| First Counterbore Depth | 0.032 INCHES NOMINAL IN |
| Base Inside Diameter | 0.500 INCHES NOMINAL IN |
| Chamfer Angle in Deg | 23.0 |
| Shoulder Depth | 0.045 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN |
| Material | PLASTIC POLYCARBONATE OVERALL |
| Shoulder Outside Diameter | 0.618 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 938B | 3/9 Design control — primary reference Genrad Inc |
| 938B | C/1 Advisory reference — outside the item-of-supply concept Iet Labs Inc |
| 0938-7110 | 5/9 Secondary reference Genrad Inc |
NSN 5970-00-405-8221 is a Insulator,bowl, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
Key specifications for 5970-00-405-8221: Center Hole Width: 0.250 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN; Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S); Center Hole Length: 0.250 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN; Height Above Mounting Surface: 0.312 INCHES NOMINAL IN. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.